Collar-button.



No. 645,079. Patented Mar. I3, |900.

J. H. FINLEY.

COLLAR BUTTON.

(Application med .my 22, 1899.)

I 11W elzhfrgags,

l d/ r l JOHN Il. FINLEY, 0F M'GRGANTOVVN, KENTUCKY;

COLLAR-serres.;

srnornro'nrroir forming part of Letters Patent No. 645,079, dated March 13, 1900. Application ld July 22, 1899. Serial No. 724,817- (No model.)

To all whom, it may concern:

Be it known that I, JOHN H. FINLEY, a citi- Zen of the United States, residing at Morgantown, in the county of Butler and State of Kentucky, have invented a new and useful Collar-Button, of which the following is a specification.

. This invention relates to separable buttons in general, and more particularly to that class known as collar orV cuff buttons, although from the following description it will be clearly understood that the structure and principles involved may be applied to a separable button for a variety of uses.

The object of the'invention is to provide a button in which the operation will be simple and in which the parts will be so formed that the elements may be quickly assembled or disassembled, and that when assembled they will be held securely against accidental displacement.

In the drawings forming a portion of this speciiication, and in which like numerals of reference designate corresponding parts in the several views, Figure 1 is a perspective View of a collar-button embodying this invention. Fig. 2 is a vertical section of the collar-button, portions thereof` being show-n in elevation. Fig. 3 is a view similar to Fig. 2, showing additional parts in elevation. Fig. 4t is a section on line t l of Fig. 2. Fig. 5 is a perspective view of the sleeve of the button.

Referring now to the drawings, 5 represents the base of a button, either disk-shaped or having any other desired outline, centrally and axially of which is secured or formed a tubular shank 6, the lower end of which is contracted to form an annular flange 7.

Within the upper end of the tubular shank 6 is arranged a sleeve 8, which may be secured in place by means of a screw 9, passed through alining perforations in the sleeve and shank,or may be fastened in any other desired manner.

Leading from the upper or outer end of the sleeve 8 are two oppositely-disposed ba onet-slots comprising longitudinal portions 10, transverse portions 11, and outwardly-extending portions 12, lying parallel with their respective portions 10 and lying entirely in the sleeve. The portions 10 open outwardly.

Adapted to engage the bayonet-slots are the 'cooperating ends 13 of a pin which is passed transversely and radially of the stem 15 of a head 16, which stem is adapted to iit snugly within the collar and have reciprocatory movement therein to enter'the pin in the bayonet-slots, the pin being forced outwardly to lie at the corresponding limits of the extension 12 of the slots through the medium of a helical spring 17, one end of which lies upon the flange 7 of the shank 6, while the other end engages a disk or washer 18 and holds it normally in engagement with the inner end of the sleeve. In this connection it will of course be understood, as shown, that the length of the stern 15 is sufficiently greater than the length of the sleeve to enable this manipulation.

In order to prevent ingress of dust or other objectionable matter between the head 16 and the adjacent upper end of the shank 6 and the sleeve, a cylindrical iiange 19 is formed upon the under side of the head 16, concentric with the stem 15 and adapted to tit' snugly upon the outer surface of the shank 6. Thus in connecting the two elements of the button the ends 13 of the pin ot' the stem 15 are disposed in the portion 10 of the bayonet-slots, and the stem is then pressed inwardly, when it engages the disk 1S and forces it against the action of the spring 17 to permit the passage of the pin to the limit of its inward movement, after which the stem is rotated slightly to bring the ends ot the pin into the lower ends ot' the portions 12 of the slots, when if the stem 15 be released the spring 17 will force it outwardly until the ends of the pin reach the outer ends of the slot portions l2, and so long as the ends of the pin lie in the slot portions 12 and at any point above the slot portions 11 there can be no removal ot` the head of the button.

As above intimated, the sleeve may be secured in place in the shank in any desired /manner, and other and further alterations in the specific construction shown may be made without departing from the spirit offthis invention.

In Fig. 2 of the drawings there is shown the employment of a longer screw than is shown in Figs. 3 and 4, the screw in Fig. 2l being shown as engaging the stem to hold it against movement. This use of the longer screw may be employed at such times when the spring may be broken or under any other conditions.

Having thus described the invention, what is claimed is In a separable button, the combination with a shank having a cylindrical bore, thelower end of which is contracted, a bushing within the upper end of the bore of the shank, alining screw-threaded perforations in the shank and bushing, a screw removablyengaging the perforations to hold the bushing in place, a

spring Within the shank and bearing at one end upon the lower contracted portion of the shank, a follower between the upper end of the spring and the bushing, and a head hav- 

